Solve for x:
7(2x - 4) = 42

x =5

Step-by-step explanation:

Distribute the 7

leaves you with 14x - 28 =42

Add 42 to both sides, cancelling out the 28 on the left

left with 14x = 70

70/14 = 5

x = 5

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1