3x – 4(x - 4) + 4 = 13
Solve for x step by step
Please answer quickly

Can someone me do math because i am having a breakdown rn because i don’t get it

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4