To solve for x in the equations given:
1) 120 + 20 = 40x5140 = 40x5x = 140/40x = 3.5
2) 9x = 72x = 72/9x = 8
3) 8x = 72x = 72/8x = 9
Therefore, x = 3.5, 8, or 9 depending on the equation.
To solve for x in the equations given:
1) 120 + 20 = 40x5
140 = 40x5
x = 140/40
x = 3.5
2) 9x = 72
x = 72/9
x = 8
3) 8x = 72
x = 72/8
x = 9
Therefore, x = 3.5, 8, or 9 depending on the equation.