Equations

Solve following equations without fractions:

a) 5 (x-1) -7 = 17-3 (1-x)
b) 3 (y-2) -4y = 2- (1 + 2y)

Correct answer:

x =  13
y =  7

Step-by-step explanation:


5(x-1)-7=17-3(1-x)

5·(x-1)-7=17-3·(1-x)

2x = 26


x = 26/2 = 13

x = 13

Our simple equation calculator calculates it.

3(y-2)-4y=2-(1+2y)

3·(y-2)-4·y=2-(1+2·y)

y = 7


y = 7/1 = 7

y = 7

Our simple equation calculator calculates it.

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