x+1.5x=7500 x-0.85x=3 4x-1.2=74

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x+1.5x=7500 x-0.85x=3 4x-1.2=74

x+1.5x=7500 x-0.85x=3 4x-1.2=74
x+1.5x=7500 x-0.85x=3 4x-1.2=74

x+1.5x=7500 x-0.85x=3 4x-1.2=74
x+1.5x=7500
2.5x=7500
x=3000
x-0.85x=3
0.15x=3
x=20
4x-1.2=74
4x=74+1.2
4x=75.2
x=9.4

x+1.5x=7500
2.5x=7500
x=7500÷2.5
x=3000
x-0.85x=3
0.15x=3
x=3÷0.15
x=20
4x-1.2=74
4x=74+1.2
4x=75.2
x=75.2÷4
x=18.8

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