-9x-56=5x.- 9х - 5х = 56.- 14 х = 56.х = 56 ÷ (- 14) = - 4.35-11m=3m+21.- 11 m - 3m = 21 - 35.- 14 m = - 14.m = - 14 ÷ (- 14) = 1.-12z+95=-7z.- 12z + 7z = - 95.- 5 z = - 95.z = - 95 ÷ (- 5) = 19.7n+12=6n+8.7n - 6n = 8 - 12.n = - 4.25=5y-5.5y = 25 + 5.5y = 30.y = 30 ÷ 5 = 6.28-9m=-8-10m.- 9m + 10 m = - 8 - 28.m = - 36.15x-12=8-5x.15x + 5x = 12 + 8.20 x = 20.x = 20 ÷ 20 = 1.-10y-64= -6y.- 10y + 6y = 64.- 4y = 64.y = 64 ÷ (- 4) = - 16.16m-5=15m-10.16m - 15m = 5 - 10.m = - 5.40-12x=20-11x.- 12x + 11 x = 20 - 40.- x = - 20.x = 20.63-8n=n.- 8 n - n = 63.- 9 n = 63.n = 63 ÷ (- 9) = 7.25-9y=5y+11.- 9y - 5y = 11 - 25.- 14y = - 14.y = - 14 ÷ (- 14) = 1.-9z+32=7z.- 9z - 7z = - 32.- 16z = - 32.Z = - 32 ÷ (- 16) = 2.10-11n=15-12n.- 11 n + 12 n = 15 - 10.n = 5.5x+21=2x.5x - 2x = - 21.3x = - 21.x = - 21 ÷ 3 = - 7.5y+15=4y+20.5y - 4y = 20 - 15.y = 5. 25-12m=45-8m.- 12 m + 8 m = 45 - 25.- 4m = 20.m = 20 ÷ (- 4) = - 5.