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Algebra 1 Name___________________________________ Solving Equations by Cross Multiplication Date________________ Period____ ©Y 62q0v1C30 PKkuHt9au 3SbobfBtXwoanr0eW JLKL0CR.F w aA9lHlQ ursiVgDhqtjsj XrDe4sNe1rPvbe3dh.V Solve each proportion. 1) n 6 = 5 7 2) 4 v = 8 6 3) 9 k = 7 2 4) 2 10 = 10 x 5) 7 6 = 5 n 6) 4 9 = 9 m 7) b 10 = 3 9 8) 3 5 = 6 r 9) 5 p = 4 5 10) ©D L2A0y143z OKMuqteal hSjorf7tDwxairye5 0LQLPCv.P h 5AxlAll trfi7gghNtDs1 6rDe3s0errAvueTdO.s r nMeaSdBeK 7wfiDtThO cILnIf9i1n8iytmeQ tGyetoLmNentHr5yP.o -1- 9 x = 10 6 Worksheet by Kuta Software LLC 11) n+7 4 = 7 9 12) 6 2 = 9 x−5 13) 8 a+1 = 10 3 14) 4 p+6 = 3 8 15) 8 6 = m−4 2 16) 3 5 = 7 n−8 17) 8 7 = 3 k−2 18) 7 x+3 = 10 4 19) 3 x+2 = 10 8 20) 7 3 = 8 x−6 ©N 92004173o CKaumtBaw xSSovfkt0wtagroe7 FLvLmCX.p J 4A6lXlQ LrviWg4hEtMsn dr2eQs1esr7vvesdX.6 t pMFaYdLeH bwgiFtphm iIwnxflipnbiatReg OGQeQozmRe1tRrRyj.J -2- Worksheet by Kuta Software LLC 21) n+5 n = 4 6 22) n+4 6 = 4n 4 23) 10 6 = x x−9 24) 6 8 = v v+4 25) a 6 = a − 10 9 26) 10 8 = a a + 10 27) r 7 = r+5 5 28) x x+4 = 5 7 29) 5 x + 10 = 10 x 30) b b−1 = 2 9 ©K F2S0U1S3g SKzuJtiav jSGoqfqtowGa2r9er iL6LxC4.i m XAEl3ld VrRiWg8hatGsI prGeKsheArivueHdv.o V LMqazdQeK dw0iutphw pIjnnfNixnZiltweJ dG7eMo6mAeOtLrbyq.2 -3- Worksheet by Kuta Software LLC 31) b−8 b−9 = 8 2 32) 8 r+9 = 3 r+8 33) 3 x−2 = 7 x−7 34) n−4 n+8 = 9 2 35) x+2 7 = x+7 4 36) p + 9 p − 10 = 10 9 37) v+6 v+9 = 3 8 38) 6 5 = k+3 k−7 39) m−8 m−6 = 5 6 40) n+7 n−6 = 2 9 ©M d2W0n1W3B AKbunt0aU OSIoSfDtfwwawrxeE sLXLuC3.4 f mAcltlm LrnikgRh6t6sq krxeBs7eXr3vwe5d0.j 7 zMtaUdmey 9wJiztdhq KI3nTfpiNn0iWtxet mGdehoem7eMt5r2yS.Q -4- Worksheet by Kuta Software LLC Answers to Solving Equations by Cross Multiplication { } { } { } 30 7 25 9) 4 37 17) 8 25) {−20} 1) 33) { } − 7 4 3) 11) 19) 27) 35) { } { } {} { } { } 18 7 − 35 9 2 5 35 2 41 − 3 − ©S E230m1G3n QKnu5tKal oSbohfntfwXaWrKed 6LxLUCI.X N UAslglP srFixgIhctFs8 4rIeBsXevryv6eedp.X a XMhazdZeG 6wkiPtih0 eIXnwfQiMnfiZt6eL UG0e3oYmoeXt8ryy2.w { } {} 30 7 7 13) 5 21) {−15} 5) 29) {−20} 37) -5- { } − 21 5 7) {30} { } { } { } 20 3 45 23) 2 28 31) 3 39) {18} 15) Worksheet by Kuta Software LLC